Hi, Could anyone please help on the following problem? Question: Do I have to make any modification to the war file created with Sun Java Web Service Developer Pack before running it on Tomcat? Steps: 1. I installed Tomcat 4.1.12 (with NT service option on and port=8090) and j2sdk1.4.0 on a server. 2. I created Authentication-deployable.war in Sun's Java Web Service Developer Pack (JWSDP-1_0_01) and, after successful testing in JWSDP, copied the WAR file to Tomcat 4.1.12 /webapps directory. This WAR contains web service code. It has class files -- no servlets. 2. I restarted the Tomcat NT service. Tomcat automatically creates an expanded directory named Authentication-deployable. 4. In the browser, I typed "http://localhost:8090/Authentication-deployable/" or "http://localhost:8090/Authentication-deployable/Authentitation?WSDL" 5. This is the error message: HTTP Status 404. The requested resource is not available. In the Tomcat manager: Application: /Authentication-deployable Running: FALSE When I click on the START (application) link, I go this error message: "Fail -Application at context path /Authentication-deployable could not start" Please help!!!